Smoke-consuming furnace and apparatus in connection therewith.



'No 678,26L' Patonted July 9, I901.

A. KRIPPEL. SMOKE BONSUMING FURNACE AND APPARATUS IN CONNEGTIONTHEREWITH.

(Application filed Doc. 24, 1897.) v

(No Model.) 8 Shaots$heet I.

Patented My 9' A.- KRIPPEL. SEflOKE GGNSUMING FURNABE-AND APPARATUS INCONNECTION THEB EWITH.

' (Application filed Dec. 24, 1897.)

8 Shee ts-Sheet 2.

(Nb Modei.

Patented July 9, i904. A. KRIPPEL. SMOKE CONSUIMNG FURNACE AND-APPABATUSIN CONNECTION THEREWITH.

(Applicatidn filed Dec. 24, 1897.)

(No Model.) 8 Sheets-Sheet 3.

lily/2 1W;

No. 678,26|. Ptent'ed My 9, mm.

' A. KRIPPEL. v SMOKE [Il'lNSUMING FURNACE AND APPARATUS IN CONNECTIONTHERgggmH.

(Application filed Dec. 24, 1897.)

(No Model.)

7 8 SheetsSheet 4.

'llillllll m. 678,26l. Paterited July 9,1901.

A. KRIPPEL SWIKE GUNSUMINGFURNAGE AND APPARATUS EN GUNNEGTIGN TI-IEREWITH.

(Application filed Dec. 24, 1897.) (No Model.) 8-Sheets$heei 5.

' o e e o a o o o o m a WZZMJJE p No. 678,26l. Patented July 9, I901. A.KBIPPEL.

SMOKE GONSUMING FURNACE AND APPARATUS IN CONNECTION THEREWITH.

(Application filed Dec. 24, 1897.)

(No Model.) 8 Sheets'Sheet 6.

" Fly z;

mm .W u l. un 8 t n e t a P L E P. P van K A 6 8 7 6 0 N SMOKE CONSUMINGFUBNACE ANDAPPARATTUS IN GONNEETION THEREWITH.

(Application filed Dec. 251, 1897.)

8 Sheets-Sheet 7 (No Model.)

- uwboooo qo No. 678,26l. Patented July 9, A.-KR|PPEL.

SMOKE BUNSUIIINB FURNAQF. AND APPARATUS IN GONNEO'TIONTHERE WITH.

(Applicatioii filed Dec. 24, 1897.)

a shm-sheet a.

(N0 Model.)

UNITED STATES PATENT Fries.-

AUGUST KRIPPEL, or VIENNA, AUSTRIA-HUNGARY.

SMOKE-CONSUMING FURNACE AND APPARATUS IN CONNECTION THEREWITH.

SPECIFIGATION forming part of Letters Patent No. 678,261, dated July 9,1901. Application filed December 24,1397. semi No. 663.356. (NomodelJsubject of the Emperor of Austria, residing in the city of Vienna, inthe Province of Lower Austria, in "the Empire of Austria-Hungary,haveinvented certain new and useful Imp'rovements in Smoke-ConsumingFurnaces and Apparatus in Connection Therewith, (for which I haveobtained patents in Germany,No. 91,332, dated February 15, 1896; in'France, No. 259,035, dated August 20, 1896; in Austria, No. 46] 3,083,dated August 3, 1896, and in Belgium, No.127,365, dated April 3, 1897,)of which the following is a specification.

ing furnace .and apparatus in connection therewith; and the object ofthe invention is to unite-i-n such a furnace a rational supply of airwith a very high temperature, so as-to permit of a great workingcapacity within considerable range. 4

The invention consists of certain features of construction andcombinationsof parts, to be hereinafter described and'then particularly'pointed out in the claims.

In the'accompanying drawings, Figure 1 is a vertical longitudinalsection. Fig. 2 is a crosssection. Fig. 3 is a horizontal section. Fig.4 is a front elevation, and Fig. 5 is a side view, of anordinarycylinder-boiler provided with my improved smoke-consumingdevice. Fig. 6 is a'vertical longitudinal section. Fig. 7 is across-section through a ship-boiler with such a firing. Fig. 6 is avertical longitudinal section, and Fig. 7 is a cross-section, of aflame-flue with my improved smoke-consuming device. Fig. Sis a verticallongitudinal section of a locomotive, partly in section, through thefire-box. Fig. 9 is a cross-section ofthe same. Fig. 9 is a frontelevation of the same. .Fig. 10 is a front view of the fire-door". Fig;11 is a transverse section of the same.' Fig. 12 is a horizontal sectionthereof, and Fig. 13 is a detail view of a part thereof. Fig. 14 is avertical longitudinal section; and Fig. 15 is a from elevation of awater-tube boiler of the Babmgck and Wilcox type, and Figs. 16 and 17are respectively a detail cross-section and a side levation of the pipeconnection leadin i'tothe waterchamber of the door at the ehds of theflues.

Similar letters of reference indicate corresponding parts.

To prevent the transmission of heat by radiation during the formation ofthe heatinggases to the surrounding watermoistened walls of the furnace,which would causealowering' of the temperature therein, the rearwardlyand downwardly sloping arches a over the fire-chamber are made offire-brick or other suitable non-conducting material, such as fire-clay,silicate of magnesia, Dynas brick, and the like.

Below the grate and at the sides of ,the ashpit A are arrangedair-channels b,'Figs. 1, 2, Th s invention relates to a smoke-cousum- 3,and 14, which are separated from the ashpit by means of iron side plates1). The airchannels bare arranged under the walls of the fire-chamberand to one side of the space occupied by the fire-chamber, so as to havean ash-pit undiminished in size. The object of said air-chan nels is toutilize the high temperature of the air under the grate forpreliminarily heatingv the secondary air which passes through saidchannels and to improve the durability of the grate by the simultaneouscooling of the ash-pit. The said iron .plates I) very quickly take upthe heat radiating downward from the grate and impart the same to theair circulating in the side air-channels b, which are closed attheirouter ends by means of slide-valvesor .dampers 0'. When theslide-valves rare opened, the heavier external air rushes into theair-channels b and presses the warmer and thinner air through a narrowtransverseslot (1, arranged at the rear end of the fire-chamber of thefurnace, through which the air is discharged with great force into thefire-chamber. This slot 01 tapers or gradually decreases in area towardthe fire-chamber and is arranged in such a mannerabove the grate thatthe relativelycool air enters at a point as high as possible above thefuel, but directly below the arches a, and thenflows inwardly in thedirection of and to the fire-door 0 into the fire-chamber, whereitsuddenly expands and is thoroughlyinixed with the combustion-gasescoming. from the direction of the fire-doon, In'this way the exhaustingor air-suction action of the chimney is placed in front of the furnace,and thereby a high. muzzle velocity through the steam being expanded bythe high temperature encountered, so as to give wayto the primary-airentering the ash-pit from below.

40' The continued supply of the secondary air,

2. I eraser slot d that is to say, a high dischhrgeve locity-ihto thefire-chambero'f the cold air taken from the Outside is obtained.Theobje'ctionable heat radiating against the firedoor is also usedcinthe same way, asit. also preliminarily heats the air entering 11'through the outside, and it isconduQted to'and fro before it entersthefurnaceata point a, Fig. 14, as high as possible above the grate. Byreason of the high temperature in the secondary air entering through thefire-door inasrn'uc motion is i'mpartedto them. The 'nu'mbei'jef thechannels 1) depends upon the size of the boiler and from localcond'ition's." .When eaaj coal is used or when clinker is on the gram 1or when the combustion -is forced, an au'gmented supply of secondary airthrough the; slot d can be cheated by opening the valve e,

Fig. 4, and admitting the steam through the perforated pipe f, which isarranged behind the sl'otd, so that the steam acts as an injector andtakes the at'mospheriefair with it into the fire-chamber.

Thissteam passes through the clinkers, loosens the s'ame', and therebyconsiderably reduces the production of the same, :such

, would be excessive, and therefore result in a wasteful combustion ofthe fuel, and hence the secondary air is supplied intermittently atshort intervals without the assistance of the fireman. :As soon as thefire door 0, Figs. 1, 3, 4, 6, and 10' to 12, is opened theyoke t, Figs.3, IO, 12, and 13, which is mounted rigidly on the pintle on which saiddoor turns, turns with it, and through thevmedium of thedi'nks 7c and t"the plug-valve l, Fig. 4, is opened,whereby the hollow sheet-metalreservoirn 'is filled from the water-pipe m, in which said plug-valveturns. After the cylinder 12 is filled it is heavier than theslide-valve 'r, withwhich it is connected by means of suitable."chai'n'sor ropes, so that the-said valver is Iift'ed'and the outside air canenter through the borrespondin'g ai'rchannel 1). At the same time bymeans of the valve 0, arranged below the cylinder 11, a regulardischarge of the water from the latter intothe cylinder-p, whichis'arranged below it, takes place,whe'reby the said cylinder at is aftera certain length of time emptied and is lightened, so that the valvelowers-by reason of-its own weight and overcomes the weight or andraises the cylinder n. From the cyliiider 1 the Water (lis- Also steammay -be 5 admitted through the-perforated pipeh be-j -l 'oit the grateby opening the valves 9, Fig. '4.

charges through 'a. discharge-pipe q. Byadj usting the valve 0 thedischarge of the water i from the cylinder'n into the receptacle 1) andthe'time for maintaining the valve 1' open may be regulated,'so that theadmission and the shutting off of the secondary air is automaticallyproduced."

For the purpose of protecting the walls of the boiler from the directflame of. the'fire van rear vault -o r arch s, of asuitable fireproofmaterial, is provided; (See Figs.- 1, 2, 8,9, and 14) Referringfto Figs.10 to 13, it will-be seen.

that the firefdoo'r c is divided by a partition 0' into two chambers.

In Fig. 14 the clean ing-door t in front of the k The air entering at 0"into the first chamber is'guided around the tubes or fines has ahixedthereto a suitable-- water-chamber u], to which wateris supplied througha pipe '0. 7 The said chamber dis.- charges througha pipe w into thereceptacle serving to feed the water to the boiler.

be easily removed when this is necessary for 9's I The v pipes 24 and ware so iarranged that they may opening the cleaning-door tto'cleanthebo'iler. I I

To facilitate the detachment of the said pipes from the door If, thecoupling-pieces of the 'said conduits are constructed in the form ofyokes, Figs. 16 and 17 ,-which are pressed airtight to the mouthpiecesabn the door 2} by, means of screws m, mounted'on suitable yokes, andsuitable washers y. As owing to the high temperature the production ofsteam i-n'the waterchamber u is possible,' the same, as shown in Fig.15, is arched on the top, and from the highest point of this arch asteamdischarge pipe zleads-to the ash-pit, By means of this constructionnot only isi't POS-,

Bible to utilize the cleaning-door t as ordin'a' rily, but afeed-waterheater is-also formed.-

' In Cornish, 'lischbein, and other boilers of similar construction thesecondary air is con ducted through the due from the rear by meansofsuitable pipes 13,-of some fireproof v I material, such as Ii1'e-clay, silicate of magnesia, 8pc. (See Figs. 6 and 7%) These pipes Bare madeo'f such a size that between them and the walls of the dues thefire-gases may just pass, and the latter are pressed against thesewalls, so that the heating effect is'considerably augmented. 1n furnacesfor locomotive and marine boilers, Figs.'6, 8, and 9,

the-secondary air is conducted by tubes D, either one tube, Fig. 6, orseveral tubes, Figs.- 8 and 9t, whichare fixed in the rear wall of thefire-box and serve instead of stiffeningbolts. These tubes D are bymeans of pieces f, which are set in, transformed into'tapcring slots. Ina locomotive-furnace the mouth of the air-channel b is located at thefront above the door of the smoke-chamber, so that the velocity of theengine is used to produce 'compressed air. The air-channel becomesbroader and flatter on thebody of the locomotive and fits perfectlythereto, whereby thehigh temperature of the same is utilized for heatingthe compressed secondary air. In allthese latter cases the self-actinghydraulic appairatus for opening and closing the secondary air-channelsis used.

Having thus described my invention, what I claim is-- 1. In asmoke-consuming furnace, the com thefir'e-cham'ber,substantially as setforth.

2. In a smoke-consuming furnace, the combination of the fire-chamberhavingasloping arch and, at therear, a tapering broad and narrow slot,arranged approximately in line with the underside of the arch, and meansfor conducting a supply. of air through said slot to the fire-chamber,alofigand in intimate contact with the under side of; the arch,substantially as set forth. p 3. In a smoke-consuming furnace, thecombination of the fire-door having an arm extending therefrom, a waterpipe provided with a cock, suitable means for connectingthe latter with,said arm or yoke, a conduitfor supplying air to the fire-chamber, avalve or damper controlling the passage through the conduit, anoperating-cord or flexible connection, a pulley over which the sameruns, and a movable receptable suspended by said cord, over said pulley,and whereby it is connected with said valve or damper, and into whichreceptacle the said water -pipe disoharges for lowering it,substantially as set forth.

In testimony whereof I have signed this specification in presence of twosubscribing witnesses.

AUGUST KRIPPEL.

- Witnesses: v

HENRY C. CARPENTER, CHAS. E. CARPENTER.

